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Definitions

champion

[cham-pee-uhn] / ˈtʃæm pi ən /
ADJECTIVE
best, excellent
Synonyms
STRONGEST
super unbeaten undefeated
STRONG
boss capital chief choice cool dandy distinguished first head premier prime principal superior tops
WEAK
blue-ribbon greatest illustrious out of sight out of this world outstanding prize-winning splendid tiptop top-drawer top-notch topflight world-class
Antonyms
STRONG
auxiliary bad extra inferior least lower minor poor secondary trivial unimportant
WEAK
poorest worst
NOUN
defeater in competition; preeminent supporter
Synonyms
STRONGEST
challenger champ defender hero medalist number one winner
STRONG
advocate ally backer conqueror endorser exponent expounder guardian heroine nonpareil paladin partisan patron proponent protector supporter sympathizer upholder vanquisher victor vindicator warrior
WEAK
numero uno the greatest titleholder top dog
Antonyms
STRONG
antagonist enemy loser opponent opposition
VERB
advocate, support
Synonyms
STRONGEST
defend espouse fight for promote uphold
STRONG
back battle contend patronize support
WEAK
go to bat for plead for put in a good word for ride shotgun for side with stand behind stand up for thump for
Antonyms
STRONGEST
forsake
STRONG
oppose
WEAK
be against

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Open champion Gary Woodland, after winning the Houston Open, his first victory on the PGA Tour since brain surgery nearly ended his career.

From The Wall Street Journal • Apr. 4, 2026

The final time of 1:49.01 for 1 1/8 miles might not answer questions about possible distance limitations for the son of Runhappy, who was a champion sprinter, but that’s to worry about another day.

From Los Angeles Times • Apr. 4, 2026

I teach these histories and champion these gains.

From Slate • Apr. 4, 2026

The Gamecocks’ Dawn Staley is a three-time national champion and the biggest threat to the UConn dynasty.

From The Wall Street Journal • Apr. 4, 2026

He saw himself as a crusader, a champion of the underdog, an enemy of sinister authority.

From "The Big Short" by Michael Lewis

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.